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CVE-2026-12944

Incomplete Security Scanner Blocklist Enables Network-Based Code Execution

CVSS 3.1 9.6 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-12944

Published

IBM Langflow OSS 1.0.0 through 1.10.0 can allow attackers to execute arbitrary Python code with root privileges (UID=0) on the Langflow server by submitting components containing socket or urllib imports. This enables: (1) AWS credential theft via IMDSv1 SSRF with full IAM role permissions, (2) arbitrary file exfiltration from the container filesystem, and (3) lateral movement to internal services (PostgreSQL, Redis) within the Docker network. The scanner incorrectly returns "validated": true, providing a false security signal.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-12944

Published

Langflow OSS

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "IBM",
                    "product": "Langflow OSS",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.0.0",
                            "lessThanOrEqual": "1.10.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
                        "cpe:2.3:a:ibm:langflow_oss:1.10.0:*:*:*:*:*:*:*"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON